R&S FSW Series, Руководство пользователя

Страница: 182 / 1450

Measurements and Results
R&S
®
FSW
182 User Manual 1173.9411.02 ─ 43
Power Mode
The measured power values can be displayed directly for each trace ("Clear/ Write"),
or only the maximum values over a series of measurements can be displayed ("Max
Hold"). In the latter case, the power values are calculated from the current trace and
compared with the previous power value using a maximum algorithm. The higher value
is retained. If "Max Hold" mode is activated, "Pwr Max" is indicated in the table header.
Note that the
trace mode remains unaffected by this setting.
Remote command:
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:MODE
on page 837
Optimized Settings (Adjust Settings)
All instrument settings for the selected channel setup (channel bandwidth, channel
spacing) can be optimized automatically.
The adjustment is carried out only once. If necessary, the instrument settings can be
changed later.
The following settings are optimized by "Adjust Settings":
●
"Frequency Span" on page 160
●
"Resolution Bandwidth (RBW)" on page 160
●
"Video Bandwidth (VBW)" on page 161
●
"Detector" on page 161
●
"Trace Averaging" on page 162
Note: The reference level is not affected by this function. To adjust the reference level
automatically, use the Setting the Reference Level Automatically (Auto Level) function
in the [Auto Set] menu.
Remote command:
[SENSe:]POWer:ACHannel:PRESet
on page 840
Symmetrical Adjacent Setup
If enabled, the upper and lower adjacent and alternate channels are defined symmetri-
cally. This is the default behavior.
If disabled, the upper and lower channels can be configured differently. This is particu-
larly useful if the lowest Tx channel and highest Tx channel use different standards and
thus require different bandwidths for adjacent channel power measurement.
Remote command:
[SENSe:]POWer:ACHannel:SSETup
on page 864
Limit Checking
Activates or deactivates limit checks globally for all adjacent and gap channels. In addi-
tion to this setting, limits must be defined and activated individually for each channel.
The results of the power limit checks are also indicated in the
STAT:QUES:ACPL
sta-
tus registry (see "STATus:QUEStionable:ACPLimit Register" on page 760).
Remote command:
CALCulate<n>:LIMit<li>:ACPower[:STATe]
on page 857
Channel Power and Adjacent-Channel Power (ACLR) Measurement